what is arc flash and what are the hazards involved

0 Answers   Reliance,

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What happen to alternator if prime mover fails?

4 Answers  

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Why we use Fuse in transformer in secondary side.Why we dont use fuse in primary side?

1 Answers   Care,

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Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

0 Answers  

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Why reverse power relay is used?

12 Answers  

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Which type of DC generator is used for electric welding purposes and why?

1 Answers  

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what is voltage rise and voltage drop?

8 Answers   HP, jetking, TCS,

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WHY WE USE SIEMENS plC

3 Answers  

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what is phase to phase to phase to ground fault

1 Answers  

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Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4 Answers  

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in what type of applications v can use q meter?

0 Answers  

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What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

0 Answers  

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